Much of what we've learned about killer apps has come from engagement with our clients. Now we'd like to expand the discussion to readers of the book as well. Whether you liked the book or not, we're eager to hear your reaction. What worked? What didn't? Which ideas made sense? Where did we lose you?      Just follow this link to the Killer App home page on Amazon.com to read what other people are already saying, and give us your two cents. You can also provide us with your own comments by .